In January, the South African rand tumbled more than 9 per cent in 15 minutes before rebounding
A spokesman for the Bank of England told AFP that it was "looking into" the cause of the flash crash
The pound recorded its biggest gain since July 15
Inflation and labour figures covering the pre-Brexit period, released earlier this week, beat analyst predictions
British pound has fallen to a 31-year low, leaving it 13% weaker against the dollar
UK currency's losses extend beyond June 23, when the public will vote on the nation's membership of the European Union
A mosaic of pound sterling symbols set in the floor of the front hall of the Bank of England in London